More details about the system:

IOS cat4000-i9s-mz.122-18.EW7.bin 

Dual Sup-IV (4515).

We are going to replace the Fan Tray in about 2 hours. Then we will verify in 
the lab with more detail how many fans are failing.

I'll keep you updated.

But no matter how many Fans are faulty, i was expecting that, even if the 
entire Fan Tray fails, there was a way to override the
system auto-shutdown.



Regards,
 
Antonio Soares, CCIE #18473 (R&S)
[email protected]

-----Original Message-----
From: Antonio Soares [mailto:[email protected]] 
Sent: quinta-feira, 19 de Novembro de 2009 13:49
To: '[email protected]'
Subject: Catalyst 4507R Single Point of Failure

Group,

This is happening to a Catalyst 4507R:

%C4K_IOSMODPORTMAN-4-FANTRAYBAD: Fan tray has failed
%C4K_CHASSIS-2-INSUFFICIENTFANSDETECTED: Too few working fans in fan tray, the 
chassis will overheat. If not resolved, in 4 minutes
all line cards will be placed into Reset-Mode
%C4K_CHASSIS-2-INSUFFICIENTFANSSHUTDOWN: Resetting linecards due to fan tray 
failure
%C4K_IOSMODPORTMAN-6-MODULEOFFLINE: Module 3 is offline
%C4K_IOSMODPORTMAN-6-MODULEOFFLINE: Module 4 is offline
%C4K_IOSMODPORTMAN-6-MODULEOFFLINE: Module 6 is offline
%C4K_IOSMODPORTMAN-6-MODULEOFFLINE: Module 7 is offline
%C4K_IOSMODPORTMAN-6-FANTRAYGOOD: Fan tray is okay

I verified that only 1 out of 6 of the fans composing the Fan Tray is stopped.

Any way to stop this automatic shutdown ?

It's hard to understand why a Catalyst with Dual Supervisors and Dual Power 
Supplies will stop because of this.




Thanks.

Regards,
 
Antonio Soares, CCIE #18473 (R&S)
[email protected]

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